List three of the benefits of his planned voyage that walton expresses to his sister

In the first letter,  the explorer Robert Walton, he tells his sister Margaret of the preparations leading up to his departure to the North Pole and of the desire in him to accomplish some great purpose, discovering a northern passage to the Pacific, revealing the source of the Earth’s magnetism, or simply setting foot on undiscovered territory.

The initial letter, Walton, tells his younger sister about his preparations that led to his departure to the north of the pole. The desire that he had on accomplishing the purpose helps him in the discovery of the way to pacific; this led to revealing of the Margaret in the earth.

The novel, therefore, has several letters, Walton is an Englishman who has a seafaring passion as the ship captain while to the dangerous voyage that reveal the sources of the earth’s magnet.

i don't get what you mean

explanation:

probably 3 since archeologists and historians don’t understand there writing.